hudson river eel project 2019 data - new york state ...€¦ · hudson river eel project 2019 data...
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Hudson River Eel Project 2019
Chris Bowser ● Sarah Mount ● Aidan Mabey
2019 Glass Eel Data
When and where are glass eels arriving?
• Each spring, nets are placed in the mouths of streams• Teams of trained volunteers catch, count, and release eels
Albany
NYC
Saw Mill/CURB
Furnace Brook
Indian Brook
Fall Kill
Ender Kill
Saw Kill
Richmond Creek
Minisceongo Creek
Quassaick Creek
Black Creek
Hannacroix Creek
Eel Project SitesSpring 2019
Hunters Brook
Blind Brook
Poestenkill
We’ve caught and released over 900,000 glass eels since 2008!
2,388 9,089 10,975 7,628
85,297
103,193
49,758 48,538
141,770
87,905
144,986
239,776
0
50,000
100,000
150,000
200,000
250,000
300,000
2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019
Total Glass Eel Catch Since 2008
Average catch per day since 2008
On average we caught 377 glass eels each dayat all our sites in 2019
16.633.3 25.4 17.2
132.2
164.8
94.1 98.9
225.7
125.4
184.7
377.0
0.0
50.0
100.0
150.0
200.0
250.0
300.0
350.0
400.0
2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019
How is the American eel population doing?In the past 20 years American eel (Anguilla rostrata) populations seem to be on the rise
But looking big picture, this is only a small amount of growth after a much longer period of overwhelming global decline
Total glass eel catch at all sites in 2019The Big Picture: over 200,000!
9712,773
8,252
94 7
13,028
9,086
17,791
28,908
1,849540
156,460
170
5,000
10,000
15,000
20,000
25,000
30,000
35,000
40,000
45,000
Average glass eels caught per day in 2019
9.7 17.3 58.0 1.6154.2
0.3
228.6 169.2275.2
442.5
37.6 12.0
2683.2
0.90
500
1000
1500
2000
2500
3000
Richmond CreekAlbany
NYC
0
20
40
60
80
100
120
140
160
2/27 3/13 3/27 4/10 4/24 5/8
Gla
ss E
els
Cau
ght/
Day
Albany
NYC
Richmond Creek, Staten IslandNew Moon Full Moon
Albany
NYC
Blind Brook
0
10
20
30
40
50
60
70
3/9 3/23 4/6 4/20
Gla
ss E
els
Cau
ght/
Day
Albany
NYC
Blind Brook, Rye
Albany
NYC
Beczak
0
100
200
300
400
500
600
700
2/26 3/21 4/12 5/9
Gla
ss E
els
Cau
ght/
Day
Albany
NYC
Beczak, Yonkers
Furnace BrookAlbany
NYC
0
5
10
15
20
25
3/5 3/20 4/4 4/19 5/4
Gla
ss E
els
Cau
ght/
Day
Furnace Brook, CortlandtAlbany
NYC
Minisceongo CreekAlbany
NYC
0
200
400
600
800
1000
1200
3/8 3/23 4/7 4/22 5/7
Gla
ss E
els
Cau
ght/
Day
Minisceongo Creek, West Haverstraw
Albany
NYC
Quassaick CreekAlbany
NYC
Albany
NYC 0
500
1000
1500
2000
2500
3000
3500
4000
3/15 3/30 4/14 4/29 5/14
Gla
ss E
els
Cau
ght/
Day
Quassaick Creek, Newburgh
Indian BrookAlbany
NYC
0
1
2
3
4
5
3/15 3/29 4/12 4/26 5/10
Gla
ss E
els
Cau
ght/
Day
Indian Brook, Cold SpringAlbany
NYC
Hunters BrookAlbany
NYC
0
20
40
60
80
100
120
140
160
180
200
0
200
400
600
800
1000
1200
3/28 4/4 4/11 4/18 4/25 5/2 5/9 5/16
Nu
mb
er
of
Elve
rs
Nu
mb
er
of
Gla
ss E
els
Hunters Brook, WappingersAlbany
NYC
Albany
NYC
Fall Kill, Poughkeepsie
Albany
NYC 0
200
400
600
800
1000
1200
1400
3/11 3/18 3/25 4/1 4/8 4/15 4/22 4/29 5/6 5/13
Gla
ss E
els
Cau
ght/
Day
Fall Kill, Poughkeepsie
Black CreekAlbany
NYC
Albany
NYC 0
500
1000
1500
2000
2500
3000
3500
4000
3/17 3/24 3/31 4/7 4/14 4/21 4/28 5/5 5/12
Gla
ss E
els
Cau
ght/
Day
Black Creek, Esopus
EnderkillAlbany
NYC
0
50
100
150
200
250
3/22 3/29 4/5 4/12 4/19 4/26 5/3 5/10
Gla
ss E
els
Cau
ght/
Day
Enderkill, StaatsburgAlbany
NYC
Saw KillAlbany
NYC
Albany
NYC 0
10
20
30
40
50
60
70
80
3/26 4/2 4/9 4/16 4/23 4/30 5/7 5/14
Gla
ss E
els
Cau
ght/
Day
Saw Kill, Annandale
Hannacroix CreekAlbany
NYC
0
2000
4000
6000
8000
10000
12000
14000
16000
4/5 4/12 4/19 4/26 5/3 5/10 5/17 5/24 5/31
Gla
ss E
els
Cau
ght/
Day
Hannacroix Creek, New Baltimore
Albany
NYC
PoestenkillAlbany
NYC
Albany
NYC 0
1
2
3
4
5
6
7
8
9
4/30 5/6 5/12 5/18 5/24
Gla
ss E
els
Cau
ght/
Day
Poestenkill, Troy
Where does the data go now?!
Data analysis and reporting
• DEC Eel Report
• Send data to the DEC Hudson
River Fisheries Unit & sent to
the Atlantic State Marine
Fisheries Commission
(ASMFC)
• Analyze data during off-
season to learn more about
eels!
Hudson River Eel Project 2019
Chris Bowser [email protected] Mount [email protected] Mabey [email protected]